public class Id extends SystemFunctionCall implements Callable
| Modifier and Type | Field and Description |
|---|---|
static int |
ELEMENT_WITH_ID |
static int |
ID |
operationargumentEFFECTIVE_BOOLEAN_VALUE, EVALUATE_METHOD, EVENT_FEED_METHOD, INHERITED_CONTEXT, INSPECTION_CONTEXT, ITEM_FEED_METHOD, ITERATE_METHOD, locationId, MAX_SEQUENCE_LENGTH, MAX_STRING_LENGTH, NAVIGATION_CONTEXT, NODE_VALUE_CONTEXT, PROCESS_METHOD, PUSH_SELECTION, staticProperties, UNBOUNDED_LOWER, UNBOUNDED_UPPER, W3C_CONSUMING, W3C_FREE_RANGING, W3C_GROUP_CONSUMING, W3C_MOTIONLESS, WATCH_METHOD| Constructor and Description |
|---|
Id() |
| Modifier and Type | Method and Description |
|---|---|
PathMap.PathMapNodeSet |
addToPathMap(PathMap pathMap,
PathMap.PathMapNodeSet pathMapNodeSet)
Add a representation of a doc() call or similar function to a PathMap.
|
Sequence |
call(XPathContext context,
Sequence[] arguments)
Evaluate the expression
|
void |
checkArguments(ExpressionVisitor visitor)
Static analysis: prevent sorting of the argument
|
int |
computeSpecialProperties()
Get the static properties of this expression (other than its type).
|
static SequenceIterator |
getIdMultiple(DocumentInfo doc,
SequenceIterator idrefs,
int operation)
Get an iterator over the nodes that have an id equal to one of the values is a set of whitespace separated
strings
|
static SequenceIterator |
getIdSingle(DocumentInfo doc,
String idrefs,
int operation)
Get an iterator over the nodes that have an id equal to one of the values is a whitespace separated
string
|
SequenceIterator |
iterate(XPathContext context)
Evaluate the function to return an iteration of selected nodes.
|
Expression |
preEvaluate(ExpressionVisitor visitor)
preEvaluate: this method suppresses compile-time evaluation by doing nothing
|
Expression |
simplify(ExpressionVisitor visitor)
Simplify: add a second implicit argument, the context document
|
Expression |
typeCheck(ExpressionVisitor visitor,
ExpressionVisitor.ContextItemType contextItemType)
Type-check the expression.
|
addContextDocumentArgument, addDocToPathMap, bindStaticContext, computeCardinality, copy, equalOrNull, equals, getContextNode, getConvertingCallable, getDefaultArgumentNode, getDetails, getErrorCodeForTypeErrors, getFunctionItemType, getImplementationMethod, getItemType, getOperation, getRequiredType, iterateSubExpressionInfo, makeSystemFunction, optimize, setDetails, useContextItemAsDefaultaddExternalFunctionCallToPathMap, checkArgumentCount, explain, getArguments, getDisplayName, getExpressionName, getFunctionName, getNumberOfArguments, hashCode, iterateSubExpressions, promote, replaceSubExpression, setArguments, setFunctionName, simplifyArguments, toStringadoptChildExpression, checkForUpdatingSubexpressions, checkPermittedContents, computeDependencies, computeStaticProperties, doPromotion, dynamicError, effectiveBooleanValue, evaluateAsString, evaluateItem, evaluatePendingUpdates, explain, getCardinality, getColumnNumber, getColumnNumber, getConstructType, getContainer, getDependencies, getEvaluationMethod, getExecutable, getExpressionCompiler, getHostLanguage, getIntegerBounds, getIntrinsicDependencies, getLineNumber, getLineNumber, getLocationId, getLocationProvider, getObjectName, getProperties, getProperty, getPublicId, getSlotsUsed, getSpecialProperties, getStreamability, getStreamingAdjunct, getSystemId, getSystemId, hasVariableBinding, implementsStaticTypeCheck, isSubtreeExpression, isUpdatingExpression, isVacuousExpression, iterateEvents, markTailFunctionCalls, process, resetLocalStaticProperties, setContainer, setEvaluationMethod, setFiltered, setFlattened, setLocationId, staticTypeCheck, suppressValidation, toPattern, toStreamingPattern, typeErrorpublic static final int ID
public static final int ELEMENT_WITH_ID
public Expression simplify(ExpressionVisitor visitor) throws XPathException
simplify in class FunctionCallvisitor - an expression visitorXPathException - if an error is discovered during expression
rewritingpublic Expression typeCheck(ExpressionVisitor visitor, ExpressionVisitor.ContextItemType contextItemType) throws XPathException
typeCheck in class FunctionCallvisitor - an expression visitorcontextItemType - the static type of "." at the point where this expression is invoked.
The parameter is set to null if it is known statically that the context item will be undefined.
If the type of the context item is not known statically, the argument is set to
Type.ITEM_TYPEXPathException - if an error is discovered during this phase
(typically a type error)public void checkArguments(ExpressionVisitor visitor) throws XPathException
checkArguments in class SystemFunctionCallvisitor - the expression visitorXPathException - if the arguments are incorrectpublic Expression preEvaluate(ExpressionVisitor visitor)
preEvaluate in class FunctionCallvisitor - an expression visitorpublic int computeSpecialProperties()
computeSpecialProperties in class SystemFunctionCallpublic PathMap.PathMapNodeSet addToPathMap(PathMap pathMap, PathMap.PathMapNodeSet pathMapNodeSet)
addToPathMap in class ExpressionpathMap - the PathMap to which the expression should be addedpathMapNodeSet - public SequenceIterator iterate(XPathContext context) throws XPathException
iterate in class Expressioncontext - supplies the context for evaluationXPathException - if any dynamic error occurs evaluating the
expressionpublic static SequenceIterator getIdSingle(DocumentInfo doc, String idrefs, int operation) throws XPathException
doc - The document to be searchedidrefs - a string containing zero or more whitespace-separated ID values to be found in the documentoperation - either ID or ELEMENT_WITH_IDXPathExceptionpublic static SequenceIterator getIdMultiple(DocumentInfo doc, SequenceIterator idrefs, int operation) throws XPathException
doc - The document to be searchedidrefs - an iterator over a set of strings each of which is a string containing
zero or more whitespace-separated ID values to be found in the documentXPathExceptionpublic Sequence call(XPathContext context, Sequence[] arguments) throws XPathException
call in interface Callablecontext - the dynamic evaluation contextarguments - the values of the arguments, supplied as SequenceIteratorsXPathException - if a dynamic error occurs during the evaluation of the expressionCopyright (c) 2004-2013 Saxonica Limited. All rights reserved.